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A novel discovery of product selectivity for slurry phase Fischer-Tropsch synthesis over a iron-base

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  • 更新日期:2011-10-29 15:08
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Abstract: The iron-based catalyst (Fe/Cu/K/SiO2) was prepared by a combination method of continuous co-precipitation and spray-drying technology. The activation was conducted in situ, using syngas (H2/CO=0.67, molar ratio) at 0.1 MPa, l.0 NL/g-cat.h and 270 oC. The FTS performances of the catalysts were evaluated in a continuous stirred tank slurry reactor (STSR) under the industrial relevant reaction condi-tions. Reduction duration of the iron-based catalyst had a significant effect on subsequent product distribu-tions. Prolonged the catalyst reduction duration from 13 h to 26 h at 270 oC, one interesting discovery that there were no water products was observed. A repeated test was carried out and the same results were ob-tained. The underlying reasons of this phenomenon were still investigated.
Keywords: Fischer-Tropsch synthesis; spray-dried iron catalyst; product selectivity; reduction; slurry reactor
 
 
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